Publication Date:
2016-09-16
Description:
We study the energetics of a superconducting double dot, by measuring both the quantum capacitance of the device and the response of a nearby charge sensor. We observe different behaviour for odd and even charge states and describe this with a model based on the competition between the charging energy and the superconducting gap. We also find that, at finite temperatures, thermodynamic considerations have a significant effect on the charge stability diagram.
Print ISSN:
0003-6951
Electronic ISSN:
1077-3118
Topics:
Physics
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